Proteins contain both acidic and basic R groups and can, therefore, function as

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Proteins can act as buffers because they contain both acidic and basic R groups, which can accept or donate protons to maintain a stable pH in a solution. While proteins can also function as energy storage molecules, structural molecules, and catalysts, the presence of acidic and basic R groups does not directly contribute to these functions. Proteins are not genetic material.

Proteins Contain Both Acidic and Basic R Groups and Can